The average dieter puts all his weight back on plus five percent more. Why is that? One reason is that most diets are not maintainable in the long term. The “eating deficits” created now result in binges and cravings later. One diet is all protein and no carbs. Another is no fat and all carbs. The result: Americans weigh more than ever.
On the other hand, those who make permanent, moderate, maintainable lifestyle changes to their eating habits (like measuring ice cream, cutting down on simple carbs) or exercise regimen (taking stairs instead of elevator) may not lose as much weight—but they are more likely to keep off the weight they lose.